KR100627707B1 - Optical display - Google Patents

Abstract

      The present invention relates to an optical display and more particularly to a reflective optical display that reflects against natural or external illumination light and transmits to a backlight with the application of a reflective transmission device that enhances brightness.

In the optical display according to the present invention, there is an upper glass in which a polarizing plate is laminated, and a lower glass having a polarizing plate at a corresponding position while keeping a distance from the upper glass, and an LC panel filled with liquid crystal between the upper and lower glasses. In the optical display comprising a backlight unit for irradiating light to the light, the light control reflects the natural light incident from the upper glass between the lower glass and the polarizing plate of the LC panel, and the light control incident to the lower glass is transmitted. And a reflective transmissive device, wherein the reflective transmissive device includes a reflective transmissive structure to allow for desired light control, and the light adjusting surface of the reflective transmissive structure is directed downward. In addition, the reflective device may be variously designed such as a liquid crystal embedded type, a backlight inserted type, or the like.

Optical, display, liquid crystal panel, optical film, reflection transmission

Description

Optical display

1 is an enlarged view of a structured surface material generally acting as a brightness enhancer

2 is a block diagram of an optical display according to an embodiment of the present invention

3 is a configuration diagram of an optical display according to another embodiment of the present invention.

4 is a configuration diagram of an optical display according to another embodiment of the present invention.

5 is a configuration diagram of an optical display according to another embodiment of the present invention.

6 is a view showing the shape of a reflective transmission device that can be applied to each embodiment of the present invention

Figure 7 is an example of the formation of the surface coating layer of the reflective transmission device that can be applied to the embodiment of the present invention, (a) is a coating of the light control surface, (b) is a coating layer on the back surface corresponding to the light control surface Drawing showing example

Explanation of symbols on the main parts of the drawings

100,200,300,400,500: Optical Display

110,210,310,410: LC panel

120,220,320,420: Reflective transmission device

130,230,330,430: Backlight Unit

501: The base body

502: reflective structure

503: light control surface

504,505: coating layer

The present invention relates to an optical display and more particularly to a reflective optical display that reflects against natural or external illumination light and transmits to a backlight with the application of a reflective transmission device that enhances brightness.

Optical displays are widely used in laptop computers, handheld calculators, digital clocks, and the like, and widely known liquid crystal (LC) displays are a common example of such displays. Conventional LC displays place liquid crystals and electrode matrices between a pair of light absorbing polarizers. In an LC display, the liquid crystal portion has an optical state that is changed by application of an electric field. This information processing generates the contrast necessary to display the information-carrying pixel with polarized light.

For this reason, conventional LC displays include front and back polarizers. Typically polarizers use dichroic dyes that absorb light in the polarization direction that is more orthogonal to it than is absorbed in either polarization direction. In general, the transmission axis of the front polarizer crosses the transmission axis of the back polarizer. The crossing angle can vary from 0 degrees to 90 degrees. The liquid crystal, the front polarizer and the back polarizer together form an LCD assembly.

LC displays can be classified based on the illumination source. That is, a reflective, transmissive, and reflective transmissive display. Reflective displays are illuminated by ambient light that suppresses the display from the front.

Typically a brush aluminum reflector is disposed behind the LCD assembly. Such a reflective surface causes the light beam to return to the LCD assembly when the polarization direction of the light beam incident on the reflective surface is maintained.

In applications where the intensity of the ambient light is insufficient to observe, it is common to replace the reflective brush aluminum face with a backlight assembly. Typical backlight assemblies include an optical cavity (light module) and a lamp or other structure that generates light rays.

Displaying by using both the ambient light and the backlit light is called a transflective method, which is a reflection type.

One problem with the transflective approach is that a typical backlight surface is not as efficient as a reflector consisting of a conventional brushed aluminum surface. In addition, the backlight randomizes the polarization of the light beam and further reduces the amount of light available to illuminate the LC display. As a result, when the backlight is added to the LC display, the display illumination is less bright under conditions that only observe ambient light.

The reflective type of the optical display is influenced by the surface material of the reflector. In order to improve this, silver is used instead of aluminum.

However, this method has many limitations. By dividing the pixel unit into two and using reflection and transmission, the maximum value is only 50% in light efficiency. And the amount coming into the final human eye is only 5% of maximum efficiency.

The technique proposed to improve the illumination and brightness of the display in the reflective type optical display greatly affected by the surface material of the reflector is shown in FIG. 1.

1 is an enlarged view of a textured surface material that acts as a reflective polarizer 50 for improving brightness. The textured surface material has a smooth side 51 and a textured side 52. Organizing side 52 includes a plurality of triangular prisms. The organized surface material 53 may be made of any transparent material having a refractive index of air, and generally a material having a high refractive index may produce good results. It has been demonstrated that polycarbonates with a refractive index of 1.586 are used effectively.

However, such a structure that applies various optical displays or brightness polarizers for improving the transmissive display method basically adopts a structure in which the pixels of the display have two reflection and transmissive shapes, so that both the ambient light and the backlight light are used. There is a problem that can not generate the appropriate brightness and contrast in a given condition.

In addition, the reflective polarizer applied for the purpose of improving brightness has a limitation in that it cannot be universally applied to several optical displays.

It is therefore an object of the present invention to provide a display in which both ambient and backlight illumination can generate the appropriate brightness and contrast in a given condition.

It is another object of the present invention to provide an optical display having a front reflection or a transmission function that reflects a pixel to an ambient light, but not a structure having two reflection and transmission shapes, and a light beam to a backlight. To provide.

Another object of the present invention is to enable effective optical display illumination to exhibit more advantageous mass productivity and productivity in optical design.

Features of the present invention for achieving this object,

There is an upper glass in which a polarizing plate is laminated, and there is a lower glass having a polarizing plate at a corresponding position at a distance from the upper glass, and is a backlight unit for irradiating light to an LC panel filled with liquid crystal between the upper and lower glasses. In an optical display made of,

And a reflection transmitting device for reflecting natural light incident from the upper glass between the lower glass and the polarizing plate of the LC panel and inducing light control to transmit the backlight light incident to the lower lower glass. A reflective transmissive structure is included to allow intended light control, and the light adjusting surface of the reflective transmissive structure is characterized by an optical display formed to face downward.

Another feature of the present invention, there is an upper glass in which a polarizing plate is laminated, there is a lower glass having a polarizing plate at a corresponding position while maintaining an interval with the upper glass, the liquid crystal is filled in the LC panel between the upper and lower glass In an optical display comprising a backlight unit for irradiating light,

Reflecting natural light incident from the upper glass between the lower glass constituting the LC panel and the backlight unit irradiating light to the LC panel, and inducing light control to transmit the backlight light incident to the lower glass. And a transmissive device comprising a reflective transmissive structure to allow for desired light control, wherein the light adjusting surface of the reflective transmissive structure is formed to face downward.

Another feature of the present invention, there is an upper glass in which the polarizing plate is laminated, there is a lower glass having a polarizing plate at a corresponding position while maintaining a gap with the upper glass, LC panel filled with liquid crystal between the upper and lower glass And a backlight unit for irradiating light to the LC panel,

The backlight unit reflects the natural light incident from the lower glass of the LC panel and is located at the lower side of the LC panel and is a light source for the LC panel to guide the light control to transmit the backlight light incident from the lower side. Comprising a reflective device on the upper side, the reflective device is made by including in the backlight unit, the reflective device includes a reflective transmission structure to enable the desired light control, the light control of the reflective transmission structure The surface is characterized by an optical display formed facing downwards.

Another feature of the present invention, there is an upper glass in which the polarizing plate is laminated, there is a lower glass having a polarizing plate at a corresponding position while maintaining a distance from the upper glass, and another glass is embedded between the upper and lower glass In the optical display comprising an active LC panel comprising a PDLC and a cholesteric liquid crystal layer which is distinguished from the upper and lower glass, and a backlight unit for irradiating light to the active LC panel,

Between the upper surface of the PDLC and the cholesteric liquid crystal layer constituting the active LC panel and the glass forming the PDLC and the cholesteric liquid crystal layer is reflected to the natural light incident from the upper upper glass and incident to the lower lower glass The backlight light has a transmissive device that directs light control to be transmitted, the reflective device comprising a reflective transmissive structure to allow for desired light control, and the light adjusting surface of the reflective transmissive structure faces downwards. The formed optical display is featured.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 schematically shows an example of applying a reflective device between polarizers of an LC panel as a configuration example of an optical display according to an exemplary embodiment of the present invention. 3 is a configuration example of an optical display according to another embodiment of the present invention, schematically showing an example in which the reflective device is applied as an independent object between the LC panel and the backlight unit. FIG. 4 schematically illustrates an example of applying a structure for inserting a reflective device into a backlight unit as a configuration example of an optical display according to another exemplary embodiment. FIG. 5 is a schematic diagram illustrating an example of applying a reflective device in an element of an active LC panel as a configuration example of an optical display according to another exemplary embodiment of the present invention. 6 is a shape of a reflective transmission device that can be applied to each embodiment of the present invention. Figure 7 is an example of the formation of the surface coating layer of the reflective transmission device that can be applied to the embodiment of the present invention (a) is a coating example of the light control surface, (b) is a coating layer on the back surface corresponding to the light control surface This is an example.

Configuration examples of the optical display according to an exemplary embodiment of the present invention are the same as those of FIGS. 2 to 5.

A configuration example of the optical display 100 according to the first embodiment of the present invention is as shown schematically in FIG. 2.

As a structure of inserting the reflective device 120 between the polarizing plate of the LC panel 110 is a structure that can maximize the efficiency of natural light.

There is an upper glass 112 in which the polarizing plate 111 is stacked, and there is a lower glass 114 having the polarizing plate 113 at a position corresponding to the upper glass 112 at a distance therebetween, and the upper and lower glasses The optical display 100 includes a backlight unit 130 that irradiates light to the LC panel 110 filled with liquid crystals between (112) and (114).

Specifically, the reflection of natural light incident from the upper glass 112 between the lower glass 114 and the polarizer 113 of the LC panel 110 is reflected, and the backlight light incident into the lower lower glass 114 is transmitted. And a reflective transmission device 120 to induce light control, wherein the reflective transmission device 120 includes a reflective transmissive structure 121 to allow intended light control and to control light of the reflective transmissive structure 121. The surface 122 is a structure of the optical display 100 formed to face downward.

A configuration example of the optical display 200 according to the second embodiment of the present invention is as shown schematically in FIG. 3.

This structure is a case where the reflective device 220 is positioned as an independent entity between the LC panel 210 and the backlight unit 230.

There is an upper glass 212 in which the polarizing plate 211 is laminated, and there is a lower glass 214 having the polarizing plate 213 at a position corresponding to the upper glass 212 at a distance therebetween, and the upper and lower glasses The optical display 200 includes a backlight unit 230 for irradiating light to the LC panel 210 filled with liquid crystals between the 212 and 214.

Specifically, natural light incident from the upper glass 212 is reflected between the lower glass 214 constituting the LC panel 210 and the backlight unit 230 irradiating light to the LC panel 210. Backlit light incident on the lower side lower glass 214 has a transmissive device 220 which induces light control to be transmitted, and the transmissive device 220 has a reflective transmissive structure 221 to allow for the intended light control. And the light adjusting surface 222 of the reflective transmissive structure 221 is a structure of the optical display 200 formed to face downward.

A configuration example of the optical display 300 according to the third embodiment of the present invention is as shown schematically in FIG. 4.

This structure is the same as the shape of inserting the reflective device 320 inside the backlight unit 330, and can simultaneously promote the diffusion sheet function and the brightness enhancement function included in the backlight unit 330 on the upper surface.

There is an upper glass 312 in which the polarizing plate 311 is laminated, and there is a lower glass 314 having a polarizing plate 313 at a position corresponding to the upper glass 312 at a distance therebetween, and the upper and lower glasses An optical display 300 includes an LC panel 310 filled with a liquid crystal between 312 and 314, and a backlight unit 330 for irradiating light to the LC panel 310.

Specifically, it is located at the lower side of the LC panel 310 to induce light control to reflect natural light incident from the lower glass 314 of the LC panel 310 and to transmit the backlight light incident from the lower side. At the same time, the reflective transmission device 320 is configured on the upper side of the backlight unit 330, which is a light source for the LC panel 310, and the reflective transmission device 320 is included in the backlight unit 330, Reflective transmissive device 320 includes a reflective transmissive structure 321 so as to provide desired light control, and the light control surface 322 of the reflective transmissive structure 321 is formed to face downwards. Structure.

The upper surface of the reflective transmission device 320 may be laminated with a diffusion film 331 to provide a diffusion sheet function and a brightness enhancement function included in the backlight unit 330 at the same time.

A configuration example of the optical display 400 according to the fourth embodiment of the present invention is as shown schematically in FIG. 5.

This structure is a structure that can be applied inside the active element. Active devices are mostly liquid crystal devices, and a liquid crystal of a PDLC (droplet type liquid crystal is randomly distributed in an isotropic medium but is kept in a predetermined direction when an electric field is applied) or the cholesteric liquid crystal layer 416. The reflective transmission device 420 is mounted on the upper surface of the structure to enhance the light reflection function in accordance with the active LC panel 410.

That is, there is an upper glass 412 in which the polarizing plate 411 is stacked, and there is a lower glass 414 having the polarizing plate 413 at a position corresponding to the upper glass 412 at intervals. An active LC panel having another glass 415 separated from the lower glass 412 and 414 to constitute the PDLC and cholesteric liquid crystal layer 416 distinguished from the upper and lower glass 412 and 414. 410 and a backlight unit 430 that irradiates light onto the active LC panel 410.

Specifically, the upper upper glass between the upper surface of the PDLC and cholesteric liquid crystal layer 416 constituting the active LC panel 410 and the glass 414 forming the PDLC and cholesteric liquid crystal layer 416 thereof. A reflection transmission device 420 which reflects the natural light incident from the 411 and induces light control to be transmitted through the backlight light incident on the lower side lower glass 415, the reflection transmission device 420 having an intention The light transmissive structure 421 includes a reflective transmissive structure 421 and the light adjusting surface 422 of the reflective transmissive structure 421 is a structure of the optical display 400 formed to face downward.

Reflective transmission devices 120, 220, 320 and 420 applied to construct the optical display 100, 200, 300 and 400 according to the first to fourth embodiments in common Structures such as 6 can be applied.

The specific configuration of the reflective transmission devices 120 to 420 includes a base body 501 arranged in layers on a specific object constituting the glass or backlight unit of the LC panel, and one surface of the base body 501. It is provided with a reflective transmissive structure 502 formed to realize the reflection and transmission at the same time, and a light control surface 503 of a specific shape that can determine the shape of the reflective transmissive structure 502 and adjust the incident and the reflection as intended. It is a form.

Thus, the reflective transmissive structure 502 or light regulating surface 503, which becomes the transmissive devices 120, 220, 320, 420, is a structure having a particular shape and shape.

For example, in the form of an optical film as shown in FIG. 6, the light adjusting surface 503 that determines the shape and shape of the reflective transmissive structure 502 may guide natural light or backlight light incident at a specific angle in an intended direction. Advantageous structures can be applied.

The reflective transmission structure 502 may be selectively applied, including a prism, a pyramid, a micro lens, a corner cube, a lenticular lens, a DOE lens, and the like, as shown in FIG. 6.

In addition, a multilayer coating may be included on or under the lens to maximize light reflection efficiency between the LC panel and the backlight unit.

FIG. 7 illustrates an example in which one or more coating layers having different refractive indices are formed on the light adjusting surface 503 or the rear surface of the reflective transmissive structure 502 to control light reflection efficiency between the LC panel and the backlight unit. ) Is an example in which the light reflection control coating layer 504 is formed on the surface of the reflective transmission structure 502, and FIG. 7B shows the light reflection control coating layer 505 on the back surface of the reflection transmission structure 502. This is an example.

In either case, it is sufficient that the conditions of the shape and shape of the reflective transmissive structure 502 satisfy the conditions for reflecting against natural light and for transmitting the backlight light.

Reflective devices (120, 220, 320, 420) having such characteristics are optical displays 100, 200, 300 and 400 presented according to the first to fourth embodiments of the present invention. It can be commonly applied to construct a.

Optical display 100, 200, 300, 400 is completed according to the present invention is basically a reflection type. As described above, the basic reflection type of the optical display has been found that the optical efficiency is most affected by the surface material of the reflector, and accordingly, there have been efforts to improve the optical properties by improving the material of the reflector. Although silver was used as a reflector instead of aluminum, it had limitations in ensuring ideal visibility without distinguishing between day and night by efficiently adjusting reflection and transmission, that is, natural light and backlight light.

The reason for this is that since the pixel unit is divided into two and used for reflection and transmission, the maximum value in terms of optical efficiency could not exceed 50% in conclusion, and finally, the amount of light entering the human eye obtained only 5% efficiency. In particular, it is difficult to expect an optical display that maintains the proper brightness and contrast under given conditions, which are determined by the ambient light and the backlight dependent light, especially when exposed to natural light.

The present invention applies the reflection transmission device (120, 220, 320, 420) to the components constituting the optical display 100 (200 (300, 400), so that both the ambient light and backlight lighting including natural light Is intended to present an optical display that can produce the appropriate brightness and contrast under given conditions, ie to make the pixel reflect the ambient light, rather than the structure of two reflections and transmissions, For example, the optical display 100, 200, 300, 400 may be obtained by having front reflection or transmission to be transmitted.

In the optical display according to the present invention, 100, 200, 300, and 400 include three basic elements. That is, the conventional optical display is an LC panel and a backlight unit, whereas the optical displays 100, 200, 300, and 400 of the present invention, which are presented in the first to fourth embodiments, include an LC panel, a reflection transmitting device, It is a backlight unit.

The LC panel may be commercially available or the known LC panel may be applied as it is, and so is the backlight unit. As shown in the 3.4 embodiment, it may be designed by directly inserting or embedded into a part of the film substrate constituting the backlight unit, or by embedding into an improved active LC panel, and any other optical display similar thereto. In addition, the reflection transmission device 120, 220, 320, 420 can be applied in the same principle.

Optical displays with LC panels applied are classified based on illumination sources as described above. The reflective display is illuminated by ambient light entering from the front surface, which reflects the polarization direction of the light incident on the reflective surface, causing the light to return to the LCD assembly. The reflection type is a method of displaying both the ambient light and the backlight light. However, the problem is that the backlight surface is not as efficient as the reflector consisting of an aluminum surface and the backlight illumination randomizes the polarization of the light beam and further reduces the light available for illuminating the LC display. As a result, when the backlight is added to the LC display, the display illumination is not relatively bright under the condition of observing the ambient light.

The present invention provides a reflection function for the ambient light by configuring a reflection transmission device 120, 220, 320, 420 in the optical display which can artificially adjust the ambient light, which is one of the problems of the transmissive display method. In addition, the backlight function is transmitted through the backlight to induce front reflection or transmission so that the display lighting can be adjusted to have maximum efficiency during the day and night as intended.

Reflective transmissive devices 120, 220, 320, 420 have a light conditioning surface 503 formed of a specific reflective transmissive structure 502 that does not function as the intended light control with a simple flat film.

6 is an example of a reflective transmission device 120, 220, 320, 420 with a reflective transmissive structure 502, which is shaped like an optical film, which determines the shape and shape of the reflective transmissive structure 502. The light adjusting surface 503 may direct natural light or backlight light incident at a specific angle in an intended direction, and may be applied by selecting an advantageous structure.

The shape of the light control surface 503 may be applied to variously selected prisms, pyramids, micro lenses, corner cube (Coner Cube), lenticular lens, DOE lens shape, etc., each may have a difference in efficiency.

In addition, in order to maximize light reflection efficiency between the LC panel and the backlight unit, a multilayer coating layer may be provided on or under the lens, in which case the light reflection efficiency may be adjusted in the intended direction.

FIG. 7 illustrates an example in which one or more coating layers having different refractive indices are formed on the light adjusting surface 503 or the rear surface of the reflective transmissive structure 502 to control light reflection efficiency between the LC panel and the backlight unit. ) Is an example in which the light reflection control coating layer 504 is formed on the surface of the reflective transmission structure 502, and FIG. 7B shows the light reflection control coating layer 505 on the back surface of the reflection transmission structure 502. This is an example.

The shape of the light control surface 503 of these various reflective transmissive structures 502 is satisfactory in any case or to the extent that it satisfies the conditions for reflecting against natural light and for transmitting backlight light.

The basic principle of the reflective device, ie the reflective structure 502, which constitutes the optical display according to the invention depends on Snell's law and Brewster angle. That is, the light control surface 503, which is adjusted in accordance with Snell's law and Brewster's angle, is intended to allow the light incident at a certain angle to be intended and returned to the desired particular direction.

Mathematical tools for calculating optical values for any thin stack of any thickness are known Fresnel reflection and transmission coefficients of the individual thin layer interfaces. Fresnel coefficients are separate formulas for polarized light that allow us to predict the reflectivity of any interface at any angle of incidence.

The reflectivity of the dielectric material interface changes as a function of the angle of incidence and exhibits significantly different values for polarized light for isotropic materials. The minimum reflectivity for polarized light is due to the Brewster effect, and the angle at which the reflectivity is zero is the Brewster angle. The reflection behavior of any thin stack at any angle of incidence is thus determined by the dielectric constant tensor values of all the thin layers involved.

Reflective transmissive structures 502, ie, light conditioning surfaces, of the transmissive devices 120, 220, 320, 420 in the optical displays 100, 200, 300, 400 represented in FIGS. 2 to 5. 503 is a form having a reflectance and reflection angle characteristics calculated in advance by applying such a mathematical tool, commonly reflects through the refraction for the natural light "n", and the illumination light "b" emitted from the backlight unit Is adjusted to be transmitted as it is, and its shape is known to be effective for the model as shown in FIG.

A configuration example of the optical display according to the first embodiment of the present invention is shown in FIG. 2. This structure is a structure in which the reflective device 120 is inserted between the polarizing plates 113 of the LC panel 110 to maximize the efficiency of natural light.

That is, natural light incident from the upper glass 112 is reflected between the lower glass 114 and the polarizer 113 of the LC panel 110, and the backlight light incident into the lower lower glass 114 is transmitted to transmit the light. The reflection transmitting device 120 that guides the control is configured to control natural light and illumination light as intended through the light adjusting surface 122 of the reflective transmissive structure 121 to achieve efficient display lighting without any structural changes.

A configuration example of the optical display according to the second embodiment of the present invention is shown in FIG. 3. This structure is a case where the reflective device 220 is positioned as an independent entity between the LC panel 210 and the backlight unit 230.

That is, natural light incident from the upper glass 212 is reflected between the lower glass 214 constituting the LC panel 210 and the backlight unit 230 irradiating light to the LC panel 210, and the lower side is reflected. The backlight light incident on the lower glass 214 constitutes a transmissive device 220 which induces light control to be transmitted to provide efficient display illumination without any structural change through the light adjusting surface 222 of the reflective transmissive structure 221. Implement

A configuration example of an optical display according to a third embodiment of the present invention is shown in FIG. 4. This structure is the same as inserting the reflective device 320 inside the backlight unit 330, it is designed to facilitate the diffusion sheet function and brightness enhancement function included in the backlight unit 330 on the upper surface at the same time If it is.

That is, while reflecting the natural light incident from the upper glass 212 of the LC panel 310, the backlight light incident from the lower side is positioned at the lower side of the LC panel 310 to induce light control to be transmitted. The reflective transmission device 320 may be included in the backlight unit 330 on the upper side of the backlight unit 330, which is a light source for the LC panel 310, so that the reflective transmission device 320 may control light. The light control surface 322 of the reflective transmissive structure 321 can be implemented to efficiently display lighting, and by treating the upper surface of the reflective transmission device 320 with a diffuser film 331, the backlight unit 330 The included diffusion sheet function and brightness enhancement function can be provided simultaneously.

A configuration example of the optical display according to the fourth embodiment of the present invention is shown in FIG. 5. This structure is a structure that can be applied inside the active element. Most of the active devices are liquid crystal devices, and the reflective device 420 is mounted on the upper surface of the PDLC or cholesteric liquid crystal layer 416 to enhance the light reflection function in accordance with the active LC panel 410. .

That is, the upper upper glass 412 between the upper surface of the PDLC and cholesteric liquid crystal layer 416 constituting the active LC panel 410 and the glass 415 forming the PDLC and cholesteric liquid crystal layer 416. The reflective transmission device 420 may be configured to reflect the natural light incident from the light incident to the lower side glass 415 and induce the light control to transmit the backlight light incident to the lower glass 415. Light control surface 422 of 421 allows for efficient display illumination without significant structural changes.

As described above, the optical display according to the present invention includes a light transmitting function that reflects natural light and transmits backlight illumination light as a basic configuration of the optical display. There is an effect that can be implemented.

In addition, the display lighting effect of all mobile communication terminals that require day and night use is large, compared to any other structure for improving the light lighting efficiency, there is a large volume of productivity and productivity.

Claims (17)

delete There is an upper glass in which a polarizing plate is laminated, and there is a lower glass having a polarizing plate at a corresponding position at a distance from the upper glass. In an optical display made of,       And a reflection transmitting device for reflecting natural light and external illumination light incident from the upper glass between the lower glass and the polarizing plate of the LC panel, and inducing the light control to transmit the backlight light incident to the lower glass. The transmissive device comprises a reflective transmissive structure for light control, and the light adjusting surface of the reflective transmissive structure is formed to face downward, The reflection transmission device, A base body arranged in layers on a specific object constituting the glass or backlight unit of the LC panel, a reflective transmissive structure formed such that one surface of the substrate main body can simultaneously perform reflection and transmission; An optical display comprising a light adjusting surface capable of determining a shape to adjust incidence and reflection. The method of claim 2, The light regulating surface of the reflective transmissive structure is configured by selectively applying prisms, pyramids, micro lenses, corner cubes, lenticular lenses, DOE lenses. The method of claim 3, wherein In order to maximize the light reflection efficiency between the LC panel and the backlight unit, the optical display, characterized in that the light reflection control coating layer formed on or below the light control surface of the reflective transmission structure. delete There is an upper glass in which a polarizing plate is laminated, and there is a lower glass having a polarizing plate at a corresponding position at a distance from the upper glass. In an optical display made of, Light control is applied between the lower glass constituting the LC panel and the backlight unit irradiating the LC panel with respect to natural light and external illumination light incident from the upper glass, and the backlight light incident to the lower lower glass is transmitted. And a reflective transmissive device, the reflective transmissive device comprising a reflective transmissive structure for achieving desired light control, wherein the light adjusting surface of the reflective transmissive structure is formed to face downward, The reflection transmission device, A base body arranged in layers on a specific object constituting the glass or backlight unit of the LC panel, a reflective transmissive structure formed such that one surface of the substrate main body can simultaneously perform reflection and transmission; An optical display comprising a light adjusting surface capable of determining a shape to adjust incidence and reflection. The method of claim 6, The light regulating surface of the reflective transmissive structure is configured by selectively applying prisms, pyramids, micro lenses, corner cubes, lenticular lenses, DOE lenses. The method of claim 7, wherein In order to maximize the light reflection efficiency between the LC panel and the backlight unit, the optical display, characterized in that the light reflection control coating layer formed on or below the light control surface of the reflective transmission structure. delete delete There is an upper glass laminated with a polarizing plate, there is a lower glass having a polarizing plate in a corresponding position at a distance from the upper glass, the LC panel filled with liquid crystal between the upper and lower glass, and the LC panel to light In the optical display consisting of a backlight unit to irradiate, The backlight unit reflects the natural light incident from the lower glass of the LC panel and is located at the lower side of the LC panel and is a light source for the LC panel to guide the light control to transmit the backlight light incident from the lower side. A reflective transmission device is configured on the upper side, the reflective transmission device is formed by being included in a backlight unit, and the reflective transmission device includes a reflective transmissive structure for controlling desired light, and the light adjusting surface of the reflective transmissive structure Is formed to face down, The reflection transmission device, A base body arranged in layers on a specific object constituting a glass or backlight unit of an LC panel, a reflective transmissive structure formed such that one surface of the substrate main body can simultaneously reflect and transmit, and a shape of the reflective transmissive structure And a light adjusting surface capable of determining incident light and reflecting light. The method of claim 11, The light regulating surface of the reflective transmissive structure is configured by selectively applying prisms, pyramids, micro lenses, corner cubes, lenticular lenses, DOE lenses. The method of claim 12, In order to maximize the light reflection efficiency between the LC panel and the backlight unit, the optical display, characterized in that the light reflection control coating layer formed on or below the light control surface of the reflective transmission structure. delete There is an upper glass in which a polarizing plate is laminated, there is a lower glass having a polarizing plate in a corresponding position at a distance from the upper glass, and provided with another glass between the upper and lower glass to distinguish it from the upper and lower glass In an optical display comprising an active LC panel constituting the PDLC and cholesteric liquid crystal layer, and a backlight unit for irradiating light to the active LC panel, Between the upper surface of the PDLC and the cholesteric liquid crystal layer constituting the active LC panel and the glass forming the PDLC and the cholesteric liquid crystal layer is reflected to the natural light incident from the upper upper glass and incident to the lower lower glass The backlight light has a transmissive device that directs light control to be transmitted, the reflective device comprising a reflective transmissive structure to allow for desired light control, and the light adjusting surface of the reflective transmissive structure faces downwards. Formed, The reflection transmission device, A base body arranged in layers on a specific object constituting a glass or backlight unit of an LC panel, a reflective transmissive structure formed such that one surface of the substrate main body can simultaneously reflect and transmit, and a shape of the reflective transmissive structure And a light adjusting surface capable of determining incident light and reflecting light. The method of claim 15, The light regulating surface of the reflective transmissive structure is configured by selectively applying prisms, pyramids, micro lenses, corner cubes, lenticular lenses, DOE lenses. The method of claim 16, In order to maximize the light reflection efficiency between the LC panel and the backlight unit, the optical display, characterized in that the light reflection control coating layer formed on or below the light control surface of the reflective transmission structure.

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